Thermodynamic analysis of concentration fluctuations and homogeneous nucleation of crystal in undercooled liquid binary alloys: Application to glass forming ability

1987 ◽  
Vol 22 (1) ◽  
pp. 57-62 ◽  
Author(s):  
P. Desre
Keyword(s):  
Thermodynamic Analysis ◽  
Homogeneous Nucleation ◽  
Binary Alloys ◽  
Glass Forming Ability ◽  
Concentration Fluctuations ◽  
Undercooled Liquid ◽  
Glass Forming

Prediction of the Glass-Forming Ability of Cu-Zr Binary Alloys

2007 ◽  
Vol 23 (6) ◽  
pp. 895-899 ◽  
Author(s):  
L GE ◽  
X HUI ◽  
G CHEN ◽  
Z LIU
Keyword(s):  
Binary Alloys ◽  
Glass Forming Ability ◽  
Glass Forming

Glass Forming Ability of Ca-Based Bulk Metallic Glasses

2011 ◽  
Vol 171 ◽  
pp. 121-126 ◽  
Author(s):  
Ashmi T. Patel ◽  
Kirit N. Lad ◽  
Arun Pratap
Keyword(s):  
Metallic Glasses ◽  
Driving Force ◽  
Bulk Metallic Glasses ◽  
Energy Difference ◽  
Glass Forming Ability ◽  
Point Of View ◽  
Undercooled Liquid ◽  
Free Energy Difference ◽  
Glass Forming ◽  
Gibbs Free Energy Difference

Knowledge of glass forming ability (GFA) of amorphous metallic alloys is very important from both theoretical and practical point of view. Thermodynamically, the Gibbs free energy difference, ΔG between the undercooled liquid and the corresponding crystalline state is driving force for crystallization. As a consequence, it is a good indicator for glass forming ability of metallic glasses. A novel expression for ΔG has been used to estimate the GFA of recently developed Ca-based bulk metallic glasses viz. Ca53Mg23Cu24,Ca65Mg15Cu20,Ca40Mg25Cu35, Ca50Mg22.5Cu27.5 and Ca55Mg15Cu30. Different GFA criteria are also evaluated for systems taken up in the study and effect of addition of variation in composition of Ca-Mg-Cu system is also investigated. Present work suggests that among different GFA criteria, ΔG is the best criterion for the prediction of GFA for Ca-based bulk metallic glasses.

scholarly journals Free volume: An indicator of the glass-forming ability in binary alloys

AIP Advances ◽  
2017 ◽  
Vol 7 (10) ◽  
pp. 105101 ◽  
Author(s):  
Bing. Liao ◽  
Shi-yang Wu ◽  
L. Yang
Keyword(s):  
Free Volume ◽  
Binary Alloys ◽  
Glass Forming Ability ◽  
Glass Forming

Thermodynamics of Te80Ge20 − x Pbx glass-forming alloys

1988 ◽  
Vol 3 (3) ◽  
pp. 570-575 ◽  
Author(s):  
L. Battezzati ◽  
A. L. Greer
Keyword(s):  
Free Energy ◽  
Specific Heat ◽  
Glass Forming Ability ◽  
Undercooled Liquid ◽  
Scanning Calorimetry ◽  
Entropy Of Fusion ◽  
Glass Forming ◽  
Crystal Phases ◽  
Solid Phases ◽  
Liquid And Solid Phases

The specific heat of liquid and solid phases and the heats of crystallization and fusion have been measured by differential scanning calorimetry (DSC) for a series of Te80Ge20 − x Pbx alloys (0≤x≤20). The enthalpy, entropy, and free energy of the undercooled liquid are quantitatively assessed with reference to the crystal phases. The available formulas for computing the free energy of the liquid are compared, and their relative merits are discussed. The glass transition temperature is shown to depend strongly on the ratio of the average excess specific heat of the liquid to the entropy of fusion. An anomaly in the liquid specific heat, which is particularly important for Te80Ge20 and Te80Ge15Pb5, leads to very good glass forming ability for these alloys; this is demonstrated by preparing amorphous samples by means of fluxing.

Role of different factors in the glass-forming ability of binary alloys

2014 ◽  
Vol 50 (4) ◽  
pp. 1783-1793 ◽  
Author(s):  
D. V. Louzguine-Luzgin ◽  
N. Chen ◽  
A. Yu. Churymov ◽  
L. V. Louzguina-Luzgina ◽  
V. I. Polkin ◽  
...  
Keyword(s):  
Binary Alloys ◽  
Glass Forming Ability ◽  
Glass Forming

On the glass-forming ability of Ni–P binary alloys

2012 ◽  
Vol 47 (8) ◽  
pp. 1973-1977
Author(s):  
Q.S. Huang ◽  
B.F. Lu ◽  
L.T. Kong ◽  
J.F. Li
Keyword(s):  
Binary Alloys ◽  
Glass Forming Ability ◽  
Glass Forming
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